Jay evaluated the expression 3x(3+12 dived by 3)-4. for his first step, he added 3+12 to get 15. what was jay's error? find the correct answer.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

The tree filled 3/4 of a cup in 1/2 and hour at what rate does syurup flow from the tree